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Hiring Now Fireblocks Implementation Specialist – Blockchain Infrastructure Engineer
Dallas, TX / San Francisco, CA(Remote/Hybrid)
Contract Opportunity | Multiple Openings
We are looking for senior engineers with strong experience in Fireblocks, HSM/MPC-based signing infrastructure, and large-scale blockchain application design to support enterprise-grade digital asset custody and transaction platforms.
This is a highly technical backend/infrastructure-focused role — ideal for candidates with experience building secure blockchain systems in production environments.
Core Requirements
- Hands-on experience with Fireblocks APIs, SDKs, and webhooks
- Strong understanding of HSM-based signing and secure key management
- Experience implementing MPC (Multi-Party Computation) workflows
- Proven ability to design and support large-scale blockchain applications
- Strong backend engineering skills in Java, Python, Node.js, or Go
- Experience with REST APIs, microservices, and distributed systems
- Deep understanding of blockchain transaction lifecycle (Bitcoin / Ethereum)
- Experience with AWS, Docker, Kubernetes, CI/CD pipelines
Key Responsibilities
- Build and support secure digital asset custody infrastructure
- Develop wallet management and transaction orchestration services
- Implement secure signing workflows and approval policies
- Design scalable blockchain transaction systems with high availability
- Troubleshoot production blockchain transaction and API integration issues
- Collaborate with DevOps, Security, and Product teams on enterprise deployments
- Support compliance and audit processes (SOC 2, ISO 27001, PCI)
Preferred Background
- Crypto exchanges / fintech / digital asset custody platforms
- Fireblocks, BitGo, Coinbase Custody, MPC infrastructure
- Blockchain infrastructure engineering
- High-throughput transaction systems
- Smart contracts / Solidity exposure
Important:
This role requires deep backend and blockchain infrastructure experience. Candidates with only frontend Web3 or basic dApp development experience may not be the right fit.
What does a Java developer in web3 do?
A Java developer in web3 would likely be focused on developing applications that use the Java programming language in the context of the web3 technology stack
Web3 is a collective term used to refer to the next generation of decentralized, blockchain-based technologies that are aimed at creating a more open and secure internet
In this context, a Java developer would be responsible for writing code that interacts with web3 technologies, such as decentralized applications (DApps) and smart contracts, to create new tools and services that run on the blockchain
This could involve working with cutting-edge technologies such as Ethereum, which is a popular blockchain platform that uses the Java programming language, as well as other web3 technologies and frameworks.